Cultivator.



- nl' f M. N. KIRKHUFF.

GULTIVATOR. APP-IOATION FILED NOV. 10, 1911.

Patented May 7, 1912;

's Q s o mi w C o m y /NI/ENTOR .7/ @JW l jm M.; Allume] M. N. KIRKHUPF. GULTIVATOR. APPLICATION FILED 11017.10, 1911.

. 2. NJN, m 1 2 V M 0u T W A 1w E ma 7, m M m y f w m 2. m z LIU n w D ,MU vv\ W\ w S 7 m E u. .Nmalllwm S 5 Anw. n J WOMW 'UNITED STATES PATENT OFFICE.

l MARSHALL N. or scorn Bunn-INDIANA, AssIeNqn'rofoLrvErtcrLLED PLoW Worms, or soUTrI BEND; INDIANA.

'ctmmva'ron Siie'cicatijoneofletters 'Patent npplieauonmed November 10119111' -serial No. essere To all whom, it may concern?, A

. Be i v4known that I, MARSHALL N. Kimi-l HUFF, arciti'zenl "of the .United States, resid?.

l ing at .South Bendf-inv-the county of St. ose'ph and-State 'of Indiana, have linvented certain new and useful Improvements in Cultivators; and I do hereby decl-are the `following 'tofbe a".'u`1l, clear, and exact descrption `oi'jl'thef invention,l such as will enable others vrfki'lled in 'thea-rt to which it ap- 1 members.'

, With this object in viewthe inventionconsists Vinl cert-ain novel -features of con- '3U-struction and combinations of'parts as 'hereafter set orth land pointed out'in the claims.'

between lts ends, the post 19, of a seat' 20,-

' In the 'accompanying drawings,-F-gure 1 is a plan view of a -lister cultivator embodyingmy improvements. `2` is arear elevation showing thespreading devices.'v Fig.`

. 3 is aside elevation of the cultivator. Fig.

, 4' is a detail lview showing draftdevices,

and Fig. 5 is an-enlarged' detailview show- 'ing one. oi the connections between the con. 0' ln'ecting bar and spreading' deyices. l1-4-2represent twi) cultlvator members or sect-ions, eachj. embodying initsconstruction,

ja' @complete jcultivator, and these are connected; togetherand relatively ,movable .4-5 laterally, .y as presently-explained, toffacili# tate the spreading of the cult-ivatorinemv bers andcause the'mto adapt themselves. tol irregularities of the rows to. be cultivated.

. "lhe' .details off construction ofzeachfof the'.-A rb' cultivator members is the same andhencefa .description of one will suffice for 'the other.

- 3 represents atongue V6r pole, with which a eultivator frame 4is connected and with 'thiscultivator frame, disks 5 and shovels 6 are' connected. y Suitable means are provided T thebPeration of a-leverp?. :-VV

for *raisin andv loweringfthe disksand shovels'aln these means aremanipulated-by hvcultiv'ator yfratrie will'be sustainedtby'wh'eels 8. 9 depend from" thetonguc'andysupport a 60 transverse bolt r10 withfiwhicha! draft'hook 11 is connected andthe-said boltffOf is also connected, by means vof -.rods .12. -the wheeled'cultiva'tor lframe;

bracket 13 is mounted upon the'pole' or 65 tongue in advance of the major portionof4 ythe cult-ivator -frameand-in this bracket,

the `forward .end of an arm 14.- is pivotally supported. From its connection with 'the' tongue, .the arm 14 extends rearwardly and 70 somewhat upwardly. At vits rear. end the arm 1,4 -is formed with a bracketl having a socket 16 which receives the'pintle of a clamp 17. The clamp 17 connected Av vfiththe armll of each cultivatormember receivesa transverse bar 18 (preferably angularin cross section) which extends .from one cultiva'tor member to the lother and rto this bar, the clamps 17 of the two 'cultivator member arms are secured. Thus it .will be'seen that 8o the part 18 constitutes a connecting bar for the two cult-ivator members and that said cultivator 'f members have swinging connection wlthsaid connecting bar through the The connect-ing bar 18 carries, centrally said'seat being thus located permanently centrally Vbetween the cultivator members and] such central location is maintained when the cultivator members are. swung. by

reason of the devices which will now be l explained.

Adjacent to respectlve sides of the seat e post 19, slides 21-22 areinounted upon the 95 connecting bar 18 and with' these slides, triangular frames 2x3- 21 are pivotally een nected. The'triangular frames 23-24 are vlocated 'inaiplanebelow thatof the connect? i .ing barg18 and depend sufficiently to reach 10o .the plane of the respective cultivat-or frames,

with-whicht-hey are pivotally connected as at 25. "To the brackets 1 5'atV the rear ends of. the arms 14, rearwardly projectingarm's Q6-27 are secured and may be of'suiliciejnt .10!I length to extend slightlyY beyond the'rearf ends of the respective cultivator' .-frames. A rod28 is pivotally connectedlfat4 one end withftherearA end of the arm'27 and the other end of this rod isprovidedwitha/ lao plurality off-' holes 29 whereby it can be adjustably andpivota-lly connected with the slide 22 on'the connecting-bar 18. The slide 21-is similarly connect-ed, by means'of a.rod with the rear Aend of the arm 26V -of the cultivator member 2.

From the construction and i arrangement of parts above described-it will be apparent that the respective cultiva-tor members can swing relatively to their tongues; that by reason of the connections between the eultivator members vand the connectinv bar and between eachother, the two cultivaltor members will move in unison and the cul- -tivator as a whole will be caused to spread or contract and thus adapt itself to irregularities of the rows being cultivated and it will also be( seen that the seat will always be located centrally between the cultivator...

members. Thus, it' the cultivator should .move to the left, motion will b e transmitted by frame 23 to slide 22 and t-lie latter, moving on bar 18 toward the. seat post, will and. rod 30,y to arm 26 of cultivator 2, thus y permitting the arm or bracket 14 yof cul?V allowing the latter to move to the lefb tivator 2 to turn on its pivotal connections` with the bar,18 and said cultivator 2 and" Thus the inward or outward movement vofthe 'two-cult.ivators will be .accomplished simultaneously.

1&0-v :Having fully described my invention what I claim as new and desire to secure by Letters-Patent is,-

1. In a lister cultivator, the `*combination with two cultiva-tor members spaced apart, and a .connecting bar, of an arm pivotally connected to each ofsaid cultivator members and having pivotal eonnectlon with said connecting bar, yand movable connections between the rear end of thepivotal arm of one-f 'cufltivator member and the frame of the".othercultivator member.'

2j.' Ina lister cultiifator, the combination `with .two cultivator members spa-ced apart,

a connecting barextending from one' cultivator member to the other, anda seat havl l`cultivator frame with which the other pivoted arm is connected.

3. In a listercultiyator, the combinationv with two cultivatorl members spaced apart, and a bar extending from one cultivator member to the other, of arms pivotally conneetedat theirrforward ends with the respect-ive cultivator members and having pivotal connection with the` connecting bar,

each of said arms provided with a member extending rearwardly from the pivotal'connecti'on of the aim with the connecting bar, slides mounted on said connecting bar, connecti'ons between said slides and the re- -Kffilfiectivecultivator members, and rods piv- "etally connected with said slldes and vconnecting the same with the rearward eXtensjlons of said pivoted arm.

4. In aulister cultivator, the'eoinbination `'with two cultivator members spaced apart,

and a Aconnecting bar extending from one member tof the other, of an arm mounted `upon each cultivator member and pivotally connected at its forward end tlierewitli,'piv otal connections between said arms and the connect-mg bar, extensions proJectingrear- 'war'dly from the pivoted arms, a seat postseoured to said connecting bar centrally between its.- ends, slides mounted on the connecting bar. at respective sides of t-he seat post, connecting .devices located in al plane below that of the connecting bar, said connecting devices pivotally connectedl at one end with the slides a'iid'at the other end with the'frames of the cultivator members, and crossed rods-connecting said slides with the rearward extensions of the pivoted arms of the respective cultiva-tor members. v

In testimony whereof, Ihave Signed this specicationV in the presence of two 1subscribing witnesses.

MARSHALL N. KIRKHUFF.

Witnesses:

' EDWIN Nicola,

R. O. MORGAN. 

